The Texas Rangers and Baltimore Orioles have plenty to do before spring training, but most teams have wrapped up their heavy lifting for the offseason.

Well, they’ve done enough to make it safe to unveil the first Power Rankings for 2013.

Away we go.

1. San Francisco Giants. Sure, the decision to return their roster virtually intact could backfire. But when you win two of the past three World Series, including the most recent one, you’ve earned the spot atop the preseason rankings.

2. Detroit Tigers. Signing Torii Hunter and getting back Victor Martinez improves an already formidable lineup, and the Justin Verlander-led rotation remains one of the best. And I’m not buying the chatter they’ll go with a rookie closer, Bruce Rondon. If they’re really “all in,” they need Rafael Soriano.

3. Washington Nationals. That shine coming out of Florida this spring will be from Stephen Strasburg’s smile after being unshackled by an innings limit. Either that, or it’ll be Davey Johnson’s smile from getting to manage this much talent.

5. Los Angeles Dodgers. They haven’t reached their goal of putting an All-Star at every position. But give them another week or two.

6. Los Angeles Angels. After trading for Jason Vargas, all they need is to sign Kyle Lohse to jump ahead of the Dodgers. Their offense already is better, which is saying something considering who is in their neighbors’ lineup.

7. Cincinnati Reds. Trying to make Aroldis Chapman a starter could leave the Reds scrambling in their rotation and bullpen. Still, it’s a move they have to try.

8. St. Louis Cardinals. With one of the most balanced rosters in the game, they didn’t need to do much this winter and they haven’t. But when the time comes, the Cardinals have the trade chips and financial resources to make one heckuva blockbuster.

9. Oakland Athletics. Even after last year, it’s difficult ranking Oakland this high. But get over it. The A’s should be even better because their ace, Brett Anderson, will enter spring training healthy and their most talented player, Yoenis Cespedes, will enter 2013 poised for a breakout season.

10. Atlanta Braves. I’d have taken B.J. Upton over Michael Bourn, too, but until they figure out who’s on third, it’s difficult to figure out how much they’ll miss Chipper Jones.

11. New York Yankees. A top 10 without the Yankees is as unusual as a Top 25 hoops poll without Kentucky. The Yankees have an age problem, too, but it’s not that they’re too young.

12. Texas Rangers. They’ve lost out on Josh Hamilton, Zack Greinke, James Shields, R.A. Dickey and, so far, Justin Upton. But don’t forget, only Hamilton was there in the middle of September when the Rangers still were riding high.

13. Philadelphia Phillies. If Roy Halladay is healthy and if Ryan Howard regains all of his power and if Chase Utley turns back the clock, the Phillies will be fine. If they don’t, Ryne Sandberg likely will be sitting in Charlie Manuel’s seat this time next year.

14. Kansas City Royals. They’ve turned their rotation into a strength and their bullpen is strong enough. Now it’s on the offense. There would seem to be too much talent to finish with the third fewest runs in the AL again.

15. Tampa Bay Rays. Trading James Shields was the right move but the Wil Myers payoff could take a while. In the short term, their rotation takes a hit and Yunel Escobar and James Loney aren’t likely to transform an already challenged offense.

16. Baltimore Orioles. If they believe they can repeat their 2012 success with essentially the same roster, good luck. Reason No. 1: They’re not likely to go 29-9 in one-run games again.

17. Chicago White Sox. Losing A.J. Pierzynski will hurt their chances more than adding Jeff Keppinger will help them.

18. Boston Red Sox. No doubt their clubhouse will be a happier place. But to improve on the field, they need Jon Lester, Clay Buchholz and John Lackey to pitch like they once did. Possible? Yes. Probable? No.

19. Milwaukee Brewers. They must believe their 43-34 second half was far more indicative of their talent than their 40-45 first half. I’m not so sure.

20. Arizona Diamondbacks. They can count on Heath Bell to pitch better than he did for the Marlins. But he’s not likely to make much of an impact on their 81-81 record. Neither is anyone else they’ve added.

21. Pittsburgh Pirates. Two years ago, their collapse began in July. Last year, August. If they can delay it till September in 2013, the Pirates should be able to pick up four more wins so they can stop hearing about their record streak of losing seasons, which is up to 20.

22. Seattle Mariners. Trading for Kendrys Morales should help their offense more than moving in the fences at Safeco Field. Adding Michael Bourn or Nick Swisher would help even more. Adding both free agents would lift the Mariners out of the 20s in these rankings.

23. San Diego Padres. Yes, they went a better-than-you-thought 55-45 in their final 100 games. But they also are expected to start 2013 with Jason Marquis (8-11, 5.22 ERA with Twins and Padres) and Tyson Ross (2-11, 6.50 ERA with the A’s) in their rotation.

24. Cleveland Indians. After adding Mark Reynolds and Drew Stubbs, one number certain to rise in Cleveland is team strikeouts. One number the Tribe can only hope doesn’t rise is Ubaldo Jimenez’s losses. He led the majors with 17 last season.

25. New York Mets. Don’t look at trading R.A. Dickey as the reason they’re this low. Their rotation still remains a strength, if Johan Santana shows improvement. His comeback season somehow seemed more impressive until checking his numbers: 6-9, 4.85 ERA and still only 21 starts.

26. Minnesota Twins. Vance Worley, 6-9 with a 4.20 ERA with the Phillies, is a leading candidate to start opening day for the Twins. In other words, their rotation remains a weakness.

27. Chicago Cubs. Their biggest gets so far this offseason have been Nate Schierholtz and Scott Feldman. The rebuilding continues … slowly.

28. Miami Marlins. If Giancarlo Stanton was upset after the salary dump on Toronto, wait until he goes a week without getting a decent pitch to hit.

29. Colorado Rockies. How can any team with Troy Tulowitzki and Carlos Gonzalez be ranked this low? Easy. The rotation is projected to be pretty much the same as the one that last year posted a majors-worst 5.81 ERA.

30. Houston Astros. But, hey, if we ranked front office IQs, they’d be right at the top.